The Labour leader stayed on the webchat for less than 20 minutes after arriving late.

He signed off by saying he was late for a train, writing: "Thanks Mumsnet - I am running to catch a train and get a seat! Really sorry I couldn't stay longer. But please have a good look at For The Many, Not The Few, it's a rattling good read!"

One user said: "What an absolute waste of time!"

Another fumed: "That was a huge disappointment".

Mr Corbyn was also accused of failing to answer serious questions, such as one about antisemitism, instead choosing to write two paragraphs about biscuits.

Mr Corbyn also said he was "looking forward" to meeting President Trump so he could"express concerns over his remarks about Muslims and women."

The Labour leader also responded to the criticism that he was too anti-sugar and unsupportive of the British sugar industry, after his previous Mumsnet chat in which he criticised the foodstuff.

He said: "Great question! I do consume some sugar, we all do, my whole point was and is that too much sugar is placed in soft drinks, fast food and in particular, in children's dishes. Sugar can be bad and lead to diabetes and other conditions.

"Hence we need strong regulation of soft drinks and food additives. I was asked on my first visit about my favourite biscuit, I replied shortbread and since then have been given many gifts of packets of shortbread! And I've yet to discover a low-sugar or no-sugar packet. I suspect it doesn't exist!

"As you probably know, I make jam, and that again has to have sugar in it. So let's agree moderation but keep our kids healthy."